SOLUTION: A journey takes 2 hours longer travelling at 60km/hr than when travelling at 80km/hr. How long does it take when travelling at 80km/hr?

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Question 459218: A journey takes 2 hours longer travelling at 60km/hr than when travelling at 80km/hr. How long does it take when travelling at 80km/hr?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
60x+120=80x
20x=120
x=6
6 hours x 80 kph=480 kms.
8 hours x 60 kph=480 kms.
The trip takes 6 hours at 80 kph..